Legislation to block Trump from attacking Cuba
H. J. RES 153 sponsored by Rep. Velázquez, Nydia M. [D-NY-7]
Bills introduced to lift the trade embargo on Cuba and end sanctions
H.R.7521 sponsored by Rep. McGovern, James P. [D-MA-2]
Senate S136 sponsored by Sen. Wyden, Ron [D-OR]
You can track the bills and contact the sponsors through the links above.